Solder Reflow Practice September 13, 2022 As noted previously, the THR reflow practice is basically identical to the SMT reflow practice. As such, it can be...
Component Insertion September 13, 2022 Whenever possible, it is desirable to use automatic pick and place technologies to insert the connectors into the PCB PTH....
Pin Geometry September 13, 2022 Basically, pins can be round or any rectangular shape, as shown in Figure 2.95. The pin geometry plays an important...
Solder Paste Application September 13, 2022 The solder paste is applied to the PCB and a subsequent squeegee pass is used to push the paste into...
Solder Paste Volume October 2, 2023 The solder paste volume on the PCB surface will be determined by the thickness and area of the stencil opening....
Screen Printing September 12, 2022 The screen printing process is particularly important because it determines the amount of solder paste that will be applied to...
The THR Manufacturing Process September 12, 2022 The basic requirement of a THR manufacturing process is to ensure compatibility with the existing SMT manufacturing process, typical stages...
Component Lead Terminations September 12, 2022 In a lead-free world, the most common finish is tin because of its very good wettability properties. However, tin can...
Contact Considerations September 12, 2022 Design and material change are also necessary for contacts, particularly the termination end of contacts. THR compatibility places additional requirements...
Housing Considerations September 12, 2022 A schematic illustration of a four-position terminal block is shown in Figure 2.78. Fig. 2.78: Four position terminal block connector...